title: The effects of environmental and hereditary factors on trichostrongylid worm infestation on sheep.
authors.forename: L O
authors.initials: LO
authors.lastname: EMIK
authors.forename: P W
authors.initials: PW
authors.lastname: GREGORY
mesh_terms: D000818:Animals; D004777:Environment; D040941:Heredity; D012756:Sheep; D012757:Sheep Diseases; D034561:Sheep, Domestic; D014253:Trichostrongylosis